Node apparatus, method, program, and recording medium

ABSTRACT

In order to suppress degradation of quality for each of services that share a radio resource, a base station 100 includes an information obtaining unit 141 configured to obtain information related to change request for quality requirement of a first service managed by a first management apparatus 400 involved in control for a radio resource of the base station 100, and a quality evaluation unit 143 configured to evaluate a quality change caused in a second service managed by a second management apparatus 500, the second service sharing the radio resource with the first service, in response to the change request for the quality requirement of the first service, to determine permission for the change request for the quality requirement of the first service.

CROSS REFERENCE TO RELATED APPLICATIONS

This application is a National Stage of International Application No.PCT/JP2019/004394 filed Feb. 7, 2019, claiming priority based onJapanese Patent Application No. 2018-042768, filed Mar. 9, 2018, theentire disclosures of which are incorporated herein.

BACKGROUND Technical Field

The present invention relates to a node apparatus in a communicationnetwork, a method, a program, and a recording medium.

Background Art

A plurality of service providers provide services to a plurality ofterminal apparatuses that share a radio resource. Each managementapparatus of the individual service providers performs communicationcontrol for satisfying a quality of service (QoS) requirement of acorresponding service, on each communication apparatus such as a basestation.

For example, PTL 1 describes a shared base station able to divide andshare resources between a plurality of network operators. This sharedbase station divides resources of the shared base station into sets ofresources reserved for individual network operators and resources sharedby all network operators. This base station is configured to bemonitored by each operator, for the usage of resources and to determinean appropriate prioritization of communication bearers associated withthe network operators, for each scheduling round.

CITATION LIST Patent Literature

[PTL 1] JP 2016-508296 T

SUMMARY Technical Problem

However, in a case that a plurality of service providers are providedwith a radio resource from the same network operator and a particularservice provider, for example, a provider that provides a service froman edge of a mobile communication network (near a terminal apparatus) orthe like, changes to a QoS requirement for a heavy use of a radioresource to perform communication control, the following inconveniencemay occur. For example, a lack of radio resources for a service providedby another service provider that provides a service via a cloud networkor the like may cause inacceptable degradation of QoS.

An example object of the present invention is to provide a nodeapparatus, a method, a program, and a recording medium that can suppressdegradation of quality for each of services that share a radio resource.

Solution to Problem

According to an example aspect of the present invention, a nodeapparatus includes an information obtaining unit configured to obtaininformation related to change request for quality requirement of a firstservice managed by a first management apparatus involved in control fora radio resource of a base station, and a quality evaluation unitconfigured to evaluate a quality change caused in a second servicemanaged by a second management apparatus, the second service sharing theradio resource with the first service, in response to the change requestfor the quality requirement of the first service, to determinepermission for the change request for the quality requirement of thefirst service.

According to an example aspect of the present invention, a methodincludes obtaining information related to change request for qualityrequirement of a first service managed by a first management apparatusinvolved in control for a radio resource of a base station, andevaluating a quality change caused in a second service managed by asecond management apparatus, the second service sharing the radioresource with the first service, in response to the change request forthe quality requirement of the first service, to determine permissionfor the change request for the quality requirement of the first service.

According to an example aspect of the present invention, a programcauses a processor to execute obtaining information related to changerequest for quality requirement of a first service managed by a firstmanagement apparatus involved in control for a radio resource of a basestation, and evaluating a quality change caused in a second servicemanaged by a second management apparatus, the second service sharing theradio resource with the first service, in response to the change requestfor the quality requirement of the first service, to determinepermission for the change request for the quality requirement of thefirst service.

According to an example aspect of the present invention, a recordingmedium is a non-transitory computer-readable recording medium storing aprogram that causes a processor to execute obtaining information relatedto change request for quality requirement of a first service managed bya first management apparatus involved in control for a radio resource ofa base station, and evaluating a quality change caused in a secondservice managed by a second management apparatus, the second servicesharing the radio resource with the first service, in response to thechange request for the quality requirement of the first service, todetermine permission for the change request for the quality requirementof the first service.

Advantageous Effects of Invention

According to the present invention, it is possible to suppressdegradation of quality for each of services that share a radio resource.Note that, according to the present invention, instead of or togetherwith the above effects, other effects may be exerted.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is an explanatory diagram illustrating an example of a schematicconfiguration of a system 1 according to an example embodiment of thepresent invention;

FIG. 2 is a block diagram illustrating an example of a schematicconfiguration of a base station 100 according to a first exampleembodiment;

FIG. 3 is a sequence diagram for illustrating an example of a schematicflow of processing according to a first example of the first exampleembodiment;

FIG. 4 is a sequence diagram for illustrating an example of a schematicflow of processing according to a second example of the first exampleembodiment;

FIG. 5 is a block diagram illustrating an example of a schematicconfiguration of a first management apparatus 400 according to a secondexample embodiment;

FIG. 6 is a sequence diagram for illustrating an example of a schematicflow of processing according to an example of the second exampleembodiment;

FIG. 7 is a block diagram illustrating an example of a schematicconfiguration of a second management apparatus 500 according to a thirdexample embodiment;

FIG. 8 is a sequence diagram for illustrating an example of a schematicflow of processing according to a first example of the third exampleembodiment;

FIG. 9 is a sequence diagram for illustrating an example of a schematicflow of processing according to a second example of the third exampleembodiment;

FIG. 10 is a sequence diagram for illustrating an example of a schematicflow of processing according to a third example of the third exampleembodiment; and

FIG. 11 is a block diagram illustrating an example of a schematicconfiguration of a node apparatus 600 according to a fourth exampleembodiment.

DESCRIPTION OF THE EXAMPLE EMBODIMENTS

Hereinafter, example embodiments of the present invention will bedescribed in detail with reference to the accompanying drawings. Notethat, in the Specification and drawings, elements to which similardescriptions are applicable are denoted by the same reference signs, andoverlapping descriptions may hence be omitted.

Descriptions will be given in the following order.

1. Overview of Example Embodiments of the Present Invention

2. Configuration of System

3. First Example Embodiment

-   -   3.1. Configuration of Base Station 100    -   3.2. Technical Features    -   3.3. Examples

4. Second Example Embodiment

-   -   4.1. Configuration of First Management Apparatus 400    -   4.2. Technical Features    -   4.3. Example

5. Third Example Embodiment

-   -   5.1. Configuration of Second Management Apparatus 500    -   5.2. Technical Features    -   5.3. Examples

6. Fourth Example Embodiment

-   -   6.1. Configuration of Node Apparatus 600    -   6.2. Technical Features

7. Other Example Embodiments

1. Overview of Example Embodiments of the Present Invention

First, an overview of example embodiments of the present invention willbe described.

(1) Technical Issues

A plurality of service providers provide services to a plurality ofterminal apparatuses that share a radio resource. Each managementapparatus of the individual service providers performs communicationcontrol for satisfying a quality of service (QoS) requirement of aservice, on each communication apparatus such as a base station.

Specifically, a technique of QoS control using QoS class identifiers(QCIs) will be described. First, assume that traffics in differentservices are accommodated in the same network to share a radio resource.In this case, a regular QoS requirement (QCI) is configured for eachservice, and, for example, Policy and Charging Rules Function (PCRF)performs centralized control for QoS of communication. To serviceshaving the same QCI, QoS control based on fairness and system efficiencyas reference is applied. In this case, the QoS for each radio section ismanaged by a communication provider.

Next, a technique of QoS control taking account of context will bedescribed. First, assume that part of traffics in various services isterminated at an edge, and that individual services share a radioresource. In this case, even though the QCIs are the same, themanagement apparatuses of individual service providers performdistributed control on E2E QoS in consideration of QoS requirements anduse states (contexts) of users. In this case, the service providers inaddition to the communication operator are involved in management of QoSfor each radio section.

However, in a case that a particular service provider, for example, aprovider that provides a service from an edge of a mobile communicationnetwork (near a terminal apparatus), or the like changes to a QoSrequirement for a heavy use of a radio resource to perform communicationcontrol, the following inconvenience may occur. For example, a lack ofradio resources for a service provided by another service provider thatprovides a service via a cloud network or the like may causeinacceptable degradation of QoS.

In view of this, an example object of the present example embodiment isto make it possible to suppress degradation of quality for each ofservices that share a radio resource.

(2) Technical Features

In an example embodiment of the present invention, for example,information related to change request for quality requirement of a firstservice managed by a first management apparatus involved in control fora radio resource of a base station is obtained, and a quality changecaused in a second service managed by a second management apparatus, thesecond service sharing the radio resource with the first service, isevaluated in response to the change request for the quality requirementof the first service, to determine permission for the change request forthe quality requirement of the first service.

In this way, it is possible, for example, to suppress degradation ofquality for each of services that share a radio resource.

Note that the above-described technical features are concrete examplesof the example embodiments of the present invention, and the presentexample embodiments of the present invention are, of course, not limitedto the above-described technical features.

2. Configuration of System

With reference to FIG. 1 , an example of a configuration of a system 1according to an example embodiment of the present invention will bedescribed. FIG. 1 is an explanatory diagram illustrating an example of aschematic configuration of the system 1 according to the exampleembodiment of the present invention. With reference to FIG. 1 , thesystem 1 includes a base station 100, terminal apparatuses 201 and 202(referred to as a terminal apparatus 200 in a collective manner),gateways 301 and 302 (referred to as a gateway 300 in a collectivemanner), a first management apparatus 400, and a second managementapparatus 500.

The system 1 is, for example, a system conforming to Third GenerationPartnership Project (3GPP) standards/specifications. More specifically,for example, the system 1 may be a system conforming to LTE/LTE-Advancedand/or System Architecture Evolution (SAE) standards/specifications.Alternatively, the system 1 may be a system conforming tofifth-generation (5G)/New Radio (NR) standards/specifications. Thesystem 1 is, of course, not limited to these examples.

(1) Base Station 100

The base station 100 is a radio access network (RAN) node and isconfigured to perform radio communication with terminal apparatuses(e.g., the terminal apparatuses 200) located in the coverage area of thebase station 100.

For example, the base station 100 may be an evolved Node B (eNB) or ageneration Node B (gNB) in 5G. The base station 100 may include aplurality of units (or a plurality of nodes). The plurality of units (orthe plurality of nodes) may include a first unit (or a first node)configured to perform higher protocol layer processing and a second unit(or a second node) configured to perform lower protocol layerprocessing. As an example, the first unit may be referred to as acenter/central unit (CU), and the second unit may be referred to as adistributed unit (DU) or an access unit (AU). As another example, thefirst unit may be referred to as a digital unit (DU), and the secondunit may be referred to as a radio unit (RU) or a remote unit (RU). Thedigital unit (DU) may be a base band unit (BBU), and the RU may be aremote radio head (RRH) or a remote radio unit (RRU). The terms for thefirst unit (or the first node) and the second unit (or the second node)are, of course, not limited to these examples. Alternatively, the basestation 100 may be a single unit (or a single node). In this case, thebase station 100 may be one of the plurality of units (e.g., either oneof the first unit and the second unit) or may be connected to anotherunit of the plurality of units (e.g., the other one of the first unitand the second unit).

(2) Terminal Apparatus 200

Each terminal apparatus 200 performs radio communication with a basestation. For example, the terminal apparatus 200 performs radiocommunication with the base station 100 in a case of being located inthe coverage area of the base station 100. For example, the terminalapparatus 200 is a user equipment (UE).

(3) Gateway 300

The gateway 300 is, for example, a network node configured to transmit asignal or data between the base station 100 and a management apparatus.For example, the gateway 300 is an S/P-GW. More specifically, asillustrated in FIG. 1 , the gateway 301 is connected to each of the basestation 100 and the first management apparatus 400. The gateway 302 isconnected to each of the base station 100 and the second managementapparatus 500.

(4) First Management Apparatus 400

The first management apparatus 400 manages provision of the firstservice (for example, autonomous driving monitoring service or the like)to the terminal apparatus 200. Specifically, the first managementapparatus 400 communicates with a terminal apparatus (for example, theterminal apparatus 201) mounted on a vehicle or a monitoring camera, viathe gateway 301 and the base station 100, to thereby transmit and/orreceive data related to the first service. The first managementapparatus 400 is involved in control for a radio resource of the basestation 100. For example, the first management apparatus 400 is amanagement apparatus based on mobile edge computing (MEC).

(5) Second Management Apparatus 500

The second management apparatus 500 manages provision of a secondservice (for example, video post service or the like) to the terminalapparatus 200. Specifically, the second management apparatus 500communicates with a terminal apparatus (for example, the terminalapparatus 202) carried by a user who wants to post or watch a video, viathe gateway 302 and the base station 100, to thereby transmit and/orreceive data related to the second service.

3. First Example Embodiment

Next, a description will be given of a first example embodiment of thepresent invention with reference to FIGS. 2 to 4 .

3.1. Configuration of Base Station 100

With reference to FIG. 2 , a description will be given of an example ofa configuration of a base station 100 according to the first exampleembodiment. FIG. 2 is a block diagram illustrating an example of aschematic configuration of the base station 100 according to the firstexample embodiment. With reference to FIG. 2 , the base station 100includes a radio communication section 110, a network communicationsection 120, a storage section 130, and a processing section 140.

(1) Radio Communication Section 110

The radio communication section 110 wirelessly transmits and/or receivesa signal. For example, the radio communication section 110 receives asignal from a terminal apparatus and transmits a signal to the terminalapparatus.

(2) Network Communication Section 120

The network communication section 120 receives a signal from a networkand transmits a signal to the network.

(3) Storage Section 130

The storage section 130 temporarily or permanently stores programs(instructions) and parameters for operations of the base station 100 aswell as various data. The program includes one or more instructions foroperations of the base station 100.

(4) Processing Section 140

The processing section 140 provides various functions of the basestation 100. The processing section 140 includes an informationobtaining unit 141, a quality evaluation unit 143, and a communicationprocessing unit 145. Note that the processing section 140 may furtherinclude constituent elements other than these constituent elements. Inother words, the processing section 140 may also perform operationsother than the operations of these constituent elements. Concreteoperations of the information obtaining unit 141, the quality evaluationunit 143, and the communication processing unit 145 will be describedlater in detail.

For example, the processing section 140 (the communication processingunit 145) communicates with a terminal apparatus (e.g., the terminalapparatus 200) via the radio communication section 110. For example, theprocessing section 140 (the communication processing unit 145)communicates with each of the first management apparatus 400 and thesecond management apparatus 500 via another network node (for example,the gateway 300) via the network communication section 120.

(5) Implementation Example

The radio communication section 110 may be implemented with an antenna,a radio frequency (RF) circuit, and the like, and the antenna may be adirectional antenna. The network communication section 120 may beimplemented with a network adapter and/or a network interface card, andthe like. The storage section 130 may be implemented with a memory(e.g., a nonvolatile memory and/or a volatile memory) and/or a harddisk, and the like. The processing section 140 may be implemented withone or more processors, such as a baseband (BB) processor and/or adifferent kind of processor. The information obtaining unit 141, thequality evaluation unit 143, and the communication processing unit 145may be implemented with the same processor or may be implemented withseparate processors. The memory (the storage section 130) may beincluded in the one or more processors or may be provided outside theone or more processors.

The base station 100 may include a memory configured to store a program(instructions) and one or more processors that can execute the program(instructions). The one or more processors may execute the program andthereby perform operations of the processing section 140 (operations ofthe information obtaining unit 141, the quality evaluation unit 143,and/or the communication processing unit 145). The program may be aprogram for causing the processor(s) to perform operations of theprocessing section 140 (operations of the information obtaining unit141, the quality evaluation unit 143, and/or the communicationprocessing unit 145).

Note that the base station 100 may be virtual. In other words, the basestation 100 may be implemented as a virtual machine. In this case, thebase station 100 (the virtual machine) may operate as a physical machine(hardware) including a processor, a memory, and the like, and a virtualmachine on a hypervisor.

3.2. Technical Features

Next, technical features of the first example embodiment will bedescribed.

The base station 100 (the information obtaining unit 141) obtainsinformation related to change request for quality requirement of thefirst service managed by the first management apparatus 400 involved incontrol for a radio resource of the base station 100. The base station100 (the quality evaluation unit 143) then evaluates a quality changecaused in the second service managed by the second management apparatus500, the second service sharing the radio resource with the firstservice, in response to the change request for the quality requirementof the first service, to determine permission for the change request forthe quality requirement of the first service.

(1) Information Obtaining

The base station 100 (the information obtaining unit 141) obtains theinformation related to the change request for the quality requirement ofthe first service by receiving the information from the first managementapparatus 400 via the gateway 301, for example.

Information Related to Quality of Second Service

The base station 100 (the information obtaining unit 141) may furtherobtain information related to quality of the second service.Specifically, the information related to the quality of the secondservice may include, for example, information related to the qualityrequirement of the second service obtainable from the second managementapparatus 500.

The information related to the quality of the second service mayinclude, for example, information related to quality statistics of thesecond service managed by the base station 100.

Further, the information related to the quality of the second servicemay include information related to an estimate of the quality of thesecond service in a case that the quality requirement of the firstservice is changed. The information related to the estimate isobtainable, for example, through estimation by the base station 100 (theinformation obtaining unit 141). Specifically, the base station 100 (theinformation obtaining unit 141) may include a quality estimation unitconfigured to estimate the estimate of the quality of the secondservice, based on a use state of the radio resource of the base station100.

(2) Quality Evaluation

The base station 100 (the quality evaluation unit 143) evaluates a stateof achievement of the quality change caused in the second service, inresponse to the change request for the quality requirement of the firstservice, based on the information related to the quality of the secondservice.

For example, the base station 100 (the quality evaluation unit 143)evaluates the quality change caused in the second service, in responseto the change request for the quality requirement of the first service,based on the estimate of the quality of the second service. Morespecifically, the base station 100 (the quality evaluation unit 143)determines permission for the change request for the quality requirementof the first service, in a case that the estimate of the quality of thesecond service satisfies the quality requirement of the second service.

(3) Communication Control

The base station 100 (the communication processing unit 145) performscontrol for the radio resource of the base station in accordance withdetermination of permission of the change request for the qualityrequirement of the first service. Here, the control for the radioresource of the base station is, for example, changing radio resourceallocation for the first service and the like.

(4) Location of Management Apparatus

For example, the first management apparatus 400 is located at an edge ofa mobile communication network. Meanwhile, the second managementapparatus 500 is located in a cloud network connected via a mobilecommunication network.

3.3. Examples

Next, examples of the first example embodiment will be described withreference to FIGS. 3 and 4 .

(1) First Example

FIG. 3 is a sequence diagram for illustrating an example of a schematicflow of processing according to a first example.

First, the first management apparatus 400 (a quality requirement changeunit) requests the base station 100 (the quality evaluation unit 143) topermit a change of the quality requirement of the first service (stepST301). In this step, the first management apparatus 400 (the qualityrequirement change unit) may add, as detailed information related to thechange, information related to an increase in throughput by XX Mbps, anincrease in usage rate of resource blocks by XX points, and the like,for example.

Next, the base station 100 (the information obtaining unit 141) obtains,for example, the quality requirement of the second service from thesecond management apparatus 500 (a quality management unit) (stepST303). Here, the base station 100 (the information obtaining unit 141)may identify the destination (for example, the IP address) of the secondmanagement apparatus 500, based on management information of theoperation maintenance system, the base station or the like. The basestation 100 (the information obtaining unit 141) may obtainidentification information of a provision target (for example, theterminal apparatus, the application, or the like) of the second service,from the second management apparatus 500.

Next, the base station 100 (the information obtaining unit 141) obtains,from the quality estimation unit, the estimate of the quality of thesecond service in a case that the change of the quality requirement ofthe first service is permitted (step ST305).

Here, the quality estimation unit derives an estimate of the quality ofthe second service in consideration of a use state of shared a radioresource, such as radio quality (a channel quality indicator (CQI))between each of the terminal apparatuses (for example, the terminalapparatuses 201 and 202) sharing a radio resource and the base station100, the usage rate of resource blocks.

For example, in a case that the contents of the change of the qualityrequirement of the first service is to “increase the throughput by XX%”, the quality estimation unit can derive an estimate of the quality ofthe second service after the change is permitted, as follows.

Specifically, the quality estimation unit assumes, based on the changeof the quality requirement of the first service, that the number ofresource blocks necessary to be used for the first service is increasedby XX %. Next, in a case that it is not possible to cover, by unusedresource blocks, the increase of the number of resource blocks to beused by XX %, the quality estimation unit assumes that the resources inshort are covered by reducing the number of resource blocks to be usedfor the second service under the control of the second managementapparatus 500 by YY %. Further, the quality estimation unit assumes thatthe reduction of the number of resource blocks to be used by YY %consequently reduces the quality (for example, the throughput) of thesecond service under the control of the second management apparatus 500by YY %. In other words, the quality estimation unit estimates anestimate of the quality of the second service after the change ispermitted, to be the value obtained by reducing the latest quality ofthe second service by YY %.

Next, the base station 100 (the quality evaluation unit 143) permits thechange of the quality requirement of the first service, in a case thatthe estimate of the quality of the second service satisfies the qualityrequirement of the second service (step ST307).

Here, in a case that a plurality of second management apparatuses 500exist in the system 1, the base station 100 (the quality evaluation unit143) may permit the change of the quality requirement of the firstservice only when the change is permitted to all the second managementapparatuses 500, for example. The base station 100 (the qualityevaluation unit 143) may determine that the change can be permitted whenthe rate of the second management apparatuses 500 which can be permittedthe change exceeds a predetermined standard. In this case, a use stateof the radio resource is evaluated for each second management apparatus500 which is not permitted the change, in accordance with apredetermined operation policy, and the particular second managementapparatus(es) 500 (for example, the second management apparatus(es) 500with a usage rate of resource blocks for a target service exceeding apredetermined standard) may be excluded from targets to be considered inoverall determination.

Lastly, when permission for the change of the quality requirement of thefirst service is obtained from the quality evaluation unit 143, the basestation 100 (the communication processing unit 145) performscommunication control for satisfying the quality requirement of thefirst service (step ST309). For example, when an increase in throughputand/or a reduction in allowable delay is requested, the base station 100(the communication processing unit 145) increases resource blocks to beallocated for a target terminal apparatus (for example, the terminalapparatus 201). Note that the base station 100 (the communicationprocessing unit 145) may notify the first management apparatus 400 (thequality requirement change unit) of a response to the permission for thechange of the first service.

According to the processing illustrated in FIG. 3 , it is possible tosuppress degradation of quality for each of services sharing a radioresource, while reducing signaling between each management apparatus(for example, the first management apparatus 400 and the secondmanagement apparatus 500) and the base station 100.

(2) Second Example

FIG. 4 is a sequence diagram for illustrating an example of a schematicflow of processing according to a second example.

First, the first management apparatus 400 (the quality requirementchange unit) requests the base station 100 to permit a change of thequality requirement of the first service (step ST401).

Next, the base station 100 (the information obtaining unit 141) obtains,for example, the quality statistics of the second service (for example,history information of service quality and/or the usage rate of resourceblocks) from the quality management unit further included in the basestation 100 (for example, the processing section 140) (step ST403).

Here, the quality management unit manages the quality statistics foreach management apparatus (for example, the second management apparatus500) for which identification information of a provision target (aterminal apparatus or an application) of the second service can beobtained. In this operation, the quality management unit maycollectively manage the quality statistics of the management apparatusesfor which identification information cannot be obtained. To obtain thequality statistics of a particular management apparatus from the qualitymanagement unit, the base station 100 (the information obtaining unit141) may obtain the quality statistics having the desired managementapparatus as a target of the statistics.

Next, the base station 100 (the quality evaluation unit 143) estimatesthe estimate of the quality statistics of the second service in a casethat the change of the quality requirement of the first service ispermitted, to thereby obtain the estimate (step ST405).

Next, the base station 100 (the quality evaluation unit 143) permits thechange of the quality requirement of the first service, in a case thatthe estimate of the quality statistics of the second service satisfies apredetermined operation policy (step ST407).

Here, as the operation policy, for example, in a case that the averagevalue of the quality statistics of the second service in a predeterminedperiod in the past is within a predetermined range, the change of thequality requirement of the first service may be permitted.Alternatively, in a case that the estimate of the quality statistics ofthe second service after the change of the quality requirement of thefirst service is within a predetermined range with respect to theaverage value of the quality statistics of the second service in apredetermined period in the past, the change of the quality requirementof the first service may be permitted.

Lastly, when permission for the change of the quality requirement of thefirst service is obtained from the quality evaluation unit 143, the basestation 100 (the communication processing unit 145) performscommunication control for satisfying the quality requirement of thefirst service (step ST409). Note that the base station 100 (thecommunication processing unit 145) may notify the first managementapparatus 400 (the quality requirement change unit) of a response to thepermission for the change of the first service.

According to the processing illustrated in FIG. 4 described above, it ispossible to suppress degradation of quality for each of services sharinga radio resource, without being in conjunction with part of managementapparatuses sharing the radio resource (for example, the secondmanagement apparatus 500).

(3) Others

According to the above-described examples, application to social systemsof various fields is possible such as autonomous driving of vehicles,automatic transporting vehicles in factories and warehouses, securityrobots, inspection robots at the time of disaster, and automatedoperation of drones for inspection and home delivery. In particular, itis possible to share peripheral information in real time by using mobilenetworks, and hence application to purposes for avoiding crashes toenable secure automated operation can be considered.

4. Second Example Embodiment

Next, a description will be given of a second example embodiment of thepresent invention with reference to FIGS. 5 and 6 .

4.1. Configuration of First Management Apparatus 400

With reference to FIG. 5 , an example of a configuration of the firstmanagement apparatus 400 according to the second example embodiment willbe described. FIG. 5 is a block diagram illustrating an example of aschematic configuration of the first management apparatus 400 accordingto the second example embodiment. With reference to FIG. 5 , the firstmanagement apparatus 400 includes a network communication section 410, astorage section 420, and a processing section 430.

(1) Network Communication Section 410

The network communication section 410 receives a signal from a networkand transmits a signal to the network.

(2) Storage Section 420

The storage section 420 temporarily or permanently stores programs(instructions) and parameters for operations of the first managementapparatus 400 as well as various data. The program includes one or moreinstructions for the operations of the first management apparatus 400.

(3) Processing Section 430

The processing section 430 provides various functions of the firstmanagement apparatus 400. The processing section 430 includes aninformation obtaining unit 431, a quality evaluation unit 433, a qualityrequirement change unit 435, and a communication processing unit 437.Note that the processing section 430 may further include constituentelements other than these constituent elements. In other words, theprocessing section 430 may also perform operations other than theoperations of these constituent elements. Concrete operations of theinformation obtaining unit 431, the quality evaluation unit 433, thequality requirement change unit 435, and the communication processingunit 437 will be described later in detail.

For example, the processing section 430 (the communication processingunit 437) communicates with the base station 100 via another networknode (for example, the gateway 300) via the network communicationsection 410.

(4) Implementation Example

The network communication section 410 may be implemented with a networkadapter and/or a network interface card, and the like. The storagesection 420 may be implemented with a memory (e.g., a nonvolatile memoryand/or a volatile memory) and/or a hard disk, and the like. Theprocessing section 430 may be implemented with one or more processors,such as a baseband (BB) processor and/or a different kind of processor.The information obtaining unit 431, the quality evaluation unit 433, thequality requirement change unit 435, and the communication processingunit 437 may be implemented with the same processor or may beimplemented with separate processors. The memory (the storage section420) may be included in the one or more processors or may be providedoutside the one or more processors.

The first management apparatus 400 may include a memory configured tostore a program (instructions) and one or more processors that canexecute the program (instructions). The one or more processors mayexecute the program and thereby perform operations of the processingsection 430 (operations of the information obtaining unit 431, thequality evaluation unit 433, the quality requirement change unit 435,and/or the communication processing unit 437). The program may be aprogram for causing the processor(s) to perform operations of theprocessing section 430 (operations of the information obtaining unit431, the quality evaluation unit 433, the quality requirement changeunit 435, and/or the communication processing unit 437).

Note that the first management apparatus 400 may be virtual. In otherwords, the first management apparatus 400 may be implemented as avirtual machine. In this case, the first management apparatus 400(virtual machine) may operate as a physical machine (hardware) includinga processor, a memory, and the like, and a virtual machine on ahypervisor.

4.2. Technical Features

Next, technical features of the second example embodiment will bedescribed.

The first management apparatus 400 (the information obtaining unit 431)obtains information related to change request for quality requirement ofa first service managed by the first management apparatus 400 involvedin control for a radio resource of the base station 100. The firstmanagement apparatus 400 (the quality evaluation unit 433) thenevaluates a quality change caused in the second service managed by thesecond management apparatus 500, the second service sharing the radioresource with the first service, in response to the change request forthe quality requirement of the first service, to determine permissionfor the change request for the quality requirement of the first service.

(1) Information Obtaining

The first management apparatus 400 (the information obtaining unit 431)obtains the information related to the change request for the qualityrequirement of the first service by receiving the information from thefirst management apparatus 400 (the quality requirement change unit435), for example. In other words, the quality requirement change unit435 performs the change request for the quality requirement of the firstservice.

Information Related to Quality of Second Service

The first management apparatus 400 (the information obtaining unit 431)may further obtain information related to quality of the second service.Specifically, the information related to the quality of the secondservice may include, for example, information related to the qualityrequirement of the second service obtainable from the second managementapparatus 500. The information related to the quality of the secondservice may include, for example, information related to qualitystatistics of the second service managed by the base station 100.

Further, the information related to the quality of the second servicemay include information related to an estimate of the quality of thesecond service in a case that the quality requirement of the firstservice is changed. The information related to the estimate isobtainable, for example, through estimation by the first managementapparatus 400 (the information obtaining unit 431). Specifically, thefirst management apparatus 400 (the information obtaining unit 431) mayinclude a quality estimation unit configured to estimate the estimate ofthe quality of the second service, based on a use state of the radioresource of the base station 100.

(2) Quality Evaluation

The first management apparatus 400 (the quality evaluation unit 433)evaluates a state of achievement of the quality change caused in thesecond service, in response to the change request for the qualityrequirement of the first service, based on the information related tothe quality of the second service.

For example, the first management apparatus 400 (the quality evaluationunit 433) evaluates the quality change caused in the second service, inresponse to the change request for the quality requirement of the firstservice, based on the estimate of the quality of the second service.More specifically, the first management apparatus 400 (the qualityevaluation unit 433) determines permission for the change request forthe quality requirement of the first service, in a case that theestimate of the quality of the second service satisfies the qualityrequirement of the second service.

(3) Location of Management Apparatus

For example, the first management apparatus 400 is located at an edge ofa mobile communication network. Meanwhile, the second managementapparatus 500 is located in a cloud network connected via a mobilecommunication network.

4.3. Example

Next, with reference to FIG. 6 and the like, an example of the secondexample embodiment will be described.

FIG. 6 is a sequence diagram for illustrating an example of a schematicflow of processing according to the example of the second exampleembodiment.

First, the first management apparatus 400 (the quality requirementchange unit 435) requests the first management apparatus 400 (theinformation obtaining unit 431) to permit a change of the qualityrequirement of the first service (step ST601).

Next, the first management apparatus 400 (the information obtaining unit431) receives, for example, quality statistics of the second servicefrom the base station 100 (the quality management unit), to therebyobtain the quality statistics (step ST603).

Here, the base station 100 (the quality management unit) manages qualitystatistics for each management apparatus for which identificationinformation of a management target (a terminal apparatus or anapplication) of the service quality can be obtained. The base station100 (the quality management unit) also collectively manages the qualitystatistics of the management apparatuses for which identificationinformation cannot be obtained. To obtain the quality statistics of aparticular management apparatus from the base station 100 (the qualitymanagement unit), the first management apparatus 400 (the informationobtaining unit 431) may obtain the quality statistics having the desiredmanagement apparatus as a target of the statistics.

The quality statistics may be compiled for each uplink/downlink or eachCQI. As the quality statistics, for example, the number of active users,the usage rate of resource blocks, the total throughput, and the likemay be obtained for all the terminal apparatuses connected to the basestation. Alternatively, the quality statistics may be a compilationresult of the average values or distributions of the throughput, thebuffer residence time of the base station, CQI, the usage rate ofresource blocks, and the like, of all the terminal apparatuses connectedto the base station 100.

Next, the first management apparatus 400 (the information obtaining unit431) estimates the estimate of the quality of the second service in acase that the change of the quality requirement of the first service ispermitted, to thereby obtain the estimate (step ST605).

Next, the first management apparatus 400 (the quality evaluation unit433) permits the change of the quality requirement of the first service,in a case that the estimate of the quality statistics of the secondservice satisfies a predetermined operation policy (step ST607). Anoperation policy used here is similar to that in the second example ofthe first example embodiment described above.

Next, when the change permission is gained from the first managementapparatus 400 (the quality evaluation unit 433), the first managementapparatus 400 (the quality requirement change unit 435) notifies thebase station 100 (the communication processing unit) of a new qualityrequirement of the first service (step ST609). The information to benotified is, for example, a performance requirement value (such asthroughput, allowable delay), reliability (the achievement rate of therequest), and a request target (such as identification information of aservice or a terminal). In a case that there exist a plurality of secondmanagement apparatuses 500, the base station 100 (the communicationprocessing unit) may be notified of the new quality requirement of thefirst service only when all the second management apparatuses 500 arepermitted the change.

Next, when receiving notification of the new quality requirement of thefirst service from the first management apparatus 400 (the qualityrequirement change unit 435), the base station 100 (the communicationprocessing unit) performs communication control for satisfying the newquality requirement.

According to the processing illustrated in FIG. 6 above, it is possible,for example, to flexibly adjust the quality requirement of the firstservice while taking account of the use state of the first servicemanaged by the first management apparatus 400.

According to the above-described example, application to social systemsof various fields is possible such as autonomous driving of vehicles,automatic transporting vehicles in factories and warehouses, securityrobots, inspection robots at the time of disaster, and automatedoperation of drones for inspection and home delivery. In particular, itis possible to share peripheral information in real time by using mobilenetworks, and hence application to purposes for avoiding crashes toenable secure automated operation can be considered.

5. Third Example Embodiment

Next, a description will be given of a third example embodiment of thepresent invention with reference to FIGS. 7 to 10 .

5.1. Configuration of Second Management Apparatus 500

With reference to FIG. 7 , an example of a configuration of the secondmanagement apparatus 500 according to the third example embodiment willbe described. FIG. 7 is a block diagram illustrating an example of aschematic configuration of the second management apparatus 500 accordingto the third example embodiment. With reference to FIG. 7 , the secondmanagement apparatus 500 includes a network communication section 510, astorage section 520, and a processing section 530.

(1) Network Communication Section 510

The network communication section 510 receives a signal from a networkand transmits a signal to the network.

(2) Storage Section 520

The storage section 520 temporarily or permanently stores programs(instructions) and parameters for operations of the second managementapparatus 500 as well as various data. The program includes one or moreinstructions for the operations of the first management apparatus 400.

(3) Processing Section 530

The processing section 530 provides various functions of the secondmanagement apparatus 500. The processing section 530 includes aninformation obtaining unit 531, a quality evaluation unit 533, and acommunication processing unit 535. Note that the processing section 530may further include constituent elements other than these constituentelements. In other words, the processing section 530 may also performoperations other than the operations of these constituent elements.Concrete operations of the information obtaining unit 531, the qualityevaluation unit 533, and the communication processing unit 535 will bedescribed later in detail.

For example, the processing section 430 (the communication processingunit 535) communicates with each of the base station 100 and the firstmanagement apparatus 400 via another network node (for example, thegateway 300) via the network communication section 510.

(4) Implementation Example

The network communication section 510 may be implemented with a networkadapter and/or a network interface card, and the like. The storagesection 520 may be implemented with a memory (e.g., a nonvolatile memoryand/or a volatile memory) and/or a hard disk, and the like. Theprocessing section 530 may be implemented with one or more processors,such as a baseband (BB) processor and/or a different kind of processor.The information obtaining unit 531, the quality evaluation unit 533, andthe communication processing unit 535 may be implemented with the sameprocessor or may be implemented with separate processors. The memory(the storage section 520) may be included in the one or more processorsor may be provided outside the one or more processors.

The second management apparatus 500 may include a memory configured tostore a program (instructions) and one or more processors that canexecute the program (instructions). The one or more processors mayexecute the program and thereby perform operations of the processingsection 530 (operations of the information obtaining unit 531, thequality evaluation unit 533, and/or the communication processing unit535). The program may be a program for causing the processor(s) toperform operations of the processing section 530 (operations of theinformation obtaining unit 531, the quality evaluation unit 533, and/orthe communication processing unit 535).

Note that the second management apparatus 500 may be virtual. In otherwords, the second management apparatus 500 may be implemented as avirtual machine. In this case, the second management apparatus 500(virtual machine) may operate as a physical machine (hardware) includinga processor, a memory, and the like, and a virtual machine on ahypervisor.

5.2. Technical Features

Next, technical features of the third example embodiment will bedescribed.

The second management apparatus 500 (the information obtaining unit 531)obtains information related to change request for quality requirement ofa first service managed by the first management apparatus 400 involvedin control for a radio resource of the base station 100. The secondmanagement apparatus 500 (the quality evaluation unit 533) thenevaluates a quality change caused in the second service managed by thesecond management apparatus 500, the second service sharing the radioresource with the first service, in response to the change request forthe quality requirement of the first service, to determine permissionfor the change request for the quality requirement of the first service.

(1) Information Obtaining

The second management apparatus 500 (the information obtaining unit 531)obtains the information related to the change request for the qualityrequirement of the first service by receiving the information from thefirst management apparatus 400 (the quality requirement change unit),for example.

Information Related to Quality of Second Service

The second management apparatus 500 (the information obtaining unit 531)may further obtain information related to quality of the second service.Specifically, the information related to the quality of the secondservice may include, for example, information related to the qualityrequirement of the second service obtainable from the second managementapparatus 500. The information related to the quality of the secondservice may include, for example, information related to qualitystatistics of the second service managed by the second managementapparatus 500.

Further, the information related to the quality of the second servicemay include information related to an estimate of the quality of thesecond service in a case that the quality requirement of the firstservice is changed. The information related to the estimate isobtainable, for example, through estimation by the base station 100.

(2) Quality Evaluation

The second management apparatus 500 (the quality evaluation unit 533)evaluates a state of achievement of the quality change caused in thesecond service, in response to the change request for the qualityrequirement of the first service, based on the information related tothe quality of the second service.

For example, the second management apparatus 500 (the quality evaluationunit 533) evaluates the quality change caused in the second service, inresponse to the change request for the quality requirement of the firstservice, based on the estimate of the quality of the second service.More specifically, the second management apparatus 500 (the qualityevaluation unit 533) determines permission for the change request forthe quality requirement of the first service, in a case that theestimate of the quality of the second service satisfies the qualityrequirement of the second service.

(3) Location of Management Apparatus

For example, the first management apparatus 400 is located at an edge ofa mobile communication network. Meanwhile, the second managementapparatus 500 is located in a cloud network connected via a mobilecommunication network.

5.3. Examples

Next, with reference to FIGS. 8 to 10 and the like, examples of thethird example embodiment will be described.

(1) First Example

FIG. 8 is a sequence diagram for illustrating an example of a schematicflow of processing according to a first example of the third exampleembodiment.

First, the second management apparatus 500 (the information obtainingunit 531) receives a change request for the quality requirement of thefirst service from the first management apparatus 400 (the qualityrequirement change unit), to thereby obtain the change request (stepST801).

Next, the second management apparatus 500 (the information obtainingunit 531) obtains the quality and the quality requirement of the secondservice under the control of the second management apparatus 500, fromthe quality management unit included in the second management apparatus500 (the processing section 530) (step ST803).

Next, in a case that the achievement state of the quality requirementfor the second service has a margin, the second management apparatus 500(the quality evaluation unit 533) permits the change of the qualityrequirement of the second service and notifies the first managementapparatus 400 (the quality requirement change unit) of informationrelated to the permission (step ST805). For example, in a case that thequality (for example, the average throughput, the average delay, and/orthe like) of the second service has achieved XX % or more above arequired standard, the second management apparatus 500 (the qualityevaluation unit 533) determines that the achievement state has a margin.

Next, when the change permission is notified from the second managementapparatus 500 (the quality evaluation unit 533), the first managementapparatus 400 (the quality requirement change unit) notifies the basestation 100 (the communication processing unit) of a new qualityrequirement of the first service (step ST807). The information to benotified is, for example, a performance requirement value (such asthroughput, allowable delay), reliability (the achievement rate of therequest), and a request target (such as a service, identificationinformation of a terminal). In a case that there exist a plurality ofsecond management apparatuses 500, the base station 100 (thecommunication processing unit) may be notified of the new qualityrequirement of the first service only when all the second managementapparatuses 500 are permitted the change.

Lastly, when receiving notification of the new quality requirement ofthe first service from the first management apparatus 400 (the qualityrequirement change unit), the base station 100 (the communicationprocessing unit) performs communication control for satisfying the newquality requirement (step ST809). For example, when an increase inthroughput and/or a reduction in allowable delay is requested, the basestation 100 (the communication processing unit) increases resourceblocks to be allocated for a target terminal apparatus.

In this way, with the processing illustrated in FIG. 8 above, it ispossible to suppress degradation of quality for each of services thatshare a radio resource.

(2) Second Example

FIG. 9 is a sequence diagram for illustrating an example of a schematicflow of processing according to a second example.

First, the second management apparatus 500 (the information obtainingunit 531) receives a change request for the quality requirement of thefirst service from the first management apparatus 400 (the qualityrequirement change unit), to thereby obtain the change request (stepST901).

Next, the second management apparatus 500 (the information obtainingunit 531) obtains the quality requirement of the second service underthe control of the second management apparatus 500, from the qualitymanagement unit included in the second management apparatus 500 (theprocessing section 530) (step ST903).

Next, the second management apparatus 500 (the information obtainingunit 531) obtains, from the base station 100 (the quality estimationunit), an estimate of the quality of the second service in a case thatthe change of the quality requirement of the first service is permitted(step ST905).

Next, in a case that the estimate of the quality of the second servicesatisfies the quality requirement of the second service, the secondmanagement apparatus 500 (the quality evaluation unit 533) permits thechange of the quality requirement of the first service and notifies thefirst management apparatus 400 (the quality requirement change unit) ofinformation related to the permission (step ST907).

Lastly, when permission for the change of the quality requirement of thefirst service is obtained from the second management apparatus 500 (thequality evaluation unit 533), the base station 100 (the communicationprocessing unit) performs communication control for satisfying thequality requirement of the first service (step ST909).

Thus, with the processing illustrated in FIG. 9 above, it is possible tograsp the influence of the change of the quality requirement of thefirst service on the quality of the second service, in consideration ofthe use state of shared a radio resource. In this way, with theprocessing illustrated in FIG. 9 above, it is possible to suppressdegradation of quality for each of services that share a radio resource.

(3) Third Example

FIG. 10 is a sequence diagram for illustrating an example of a schematicflow of processing according to a third example.

First, the first management apparatus 400 (the quality requirementchange unit) performs change request for the quality requirement of thefirst service on the base station 100 (the communication processingunit) (step ST1001).

Next, the base station 100 (the communication processing unit) performsthe change request for the quality requirement of the first service onthe second management apparatus 500 (the information obtaining unit 531)(step ST1003).

Next, the second management apparatus 500 (the information obtainingunit 531) obtains the quality requirement of the second service underthe control of the second management apparatus 500, from the qualitymanagement unit included in the second management apparatus 500 (theprocessing section 530) (step ST1005).

Next, the second management apparatus 500 (the information obtainingunit 531) obtains, from the base station 100 (the quality estimationunit), an estimate of the quality of the second service in a case thatthe change of the quality requirement of the first service is permitted(step ST1007).

Next, in a case that the estimate of the quality of the second servicesatisfies the quality requirement of the second service, the secondmanagement apparatus 500 (the quality evaluation unit 533) permits thechange of the quality requirement of the first service and notifies thebase station 100 (the communication processing unit) of informationrelated to the permission (step ST1009). Note that the base station 100may transmit the information related to the permission to the firstmanagement apparatus 400 (the quality requirement change unit).

Lastly, when permission for the change of the quality requirement of thefirst service is obtained from the second management apparatus 500 (thequality evaluation unit 533), the base station 100 performscommunication control for satisfying the quality requirement of thefirst service (step ST1011).

Thus, with the processing illustrated in FIG. 10 above, it is notnecessary to establish a communication connection between the firstmanagement apparatus 400 and the second management apparatus 500. Hence,with the processing illustrated in FIG. 10 above, it is possible tosuppress degradation of quality for each of services that share a radioresource while easily improving security management.

(4) Others

According to the above-described examples, application to social systemsof various fields is possible such as autonomous driving of vehicles,automatic transporting vehicles in factories and warehouses, securityrobots, inspection robots at the time of disaster, and automatedoperation of drones for inspection and home delivery. In particular, itis possible to share peripheral information in real time by using mobilenetworks, and hence application to purposes for avoiding crashes toenable secure automated operation can be considered.

6. Fourth Example Embodiment

Next, a description will be given of a fourth example embodiment of thepresent invention with reference to FIG. 11 . The above-described firstto third example embodiments are concrete example embodiments, whereasthe fourth example embodiment is a more generalized example embodiment.

6.1. Configuration of Node Apparatus 600

First, with reference to FIG. 11 , an example of a configuration of anode apparatus 600 according to the fourth example embodiment will bedescribed. FIG. 11 is a block diagram illustrating an example of aschematic configuration of the node apparatus 600 according to thefourth example embodiment. With reference to FIG. 11 , the nodeapparatus 600 includes an information obtaining unit 651 and a qualityevaluation unit 653. Concrete operations of the information obtainingunit 651 and the quality evaluation unit 653 will be described later.

The information obtaining unit 651 and the quality evaluation unit 653may be implemented with the same processor or may be implemented withseparate processors. The information obtaining unit 651 and the qualityevaluation unit 653 may include a memory configured to store a program(instructions) and one or more processors that can execute the program(instructions), and the one or more processors may perform operations ofthe information obtaining unit 651 and the quality evaluation unit 653.The program may be a program for causing the processor(s) to performoperations of the information obtaining unit 651 and the qualityevaluation unit 653.

Note that each of the processors described above may be, for example, avirtual processor implemented with a hypervisor installed in ageneral-purpose computer or the like. Each of the memories describedabove may be, for example, a virtual memory implemented with ahypervisor installed in a general-purpose computer or the like.

6.2. Technical Features

Next, technical features of the fourth example embodiment will bedescribed.

In the fourth example embodiment, the node apparatus 600 (theinformation obtaining unit 651) obtains information related to changerequest for quality requirement of the first service managed by thefirst management apparatus 400 involved in control for a radio resourceof the base station 100. The node apparatus 600 (the quality evaluationunit 653) then evaluates a quality change caused in the second servicemanaged by the second management apparatus 500, the second servicesharing the radio resource with the first service, in response to thechange request for the quality requirement of the first service, todetermine permission for the change request for the quality requirementof the first service.

For example, the information obtaining unit 651 may perform theoperations of the information obtaining unit 141 according to the firstexample embodiment described above, the information obtaining unit 431according to the second example embodiment described above, or theinformation obtaining unit 531 according to the third example embodimentdescribed above. The quality evaluation unit 653 may perform theoperations of the quality evaluation unit 143 according to the firstexample embodiment described above, the quality evaluation unit 433according to the second example embodiment described above, or thequality evaluation unit 533 according to the third example embodimentdescribed above.

The fourth example embodiment has been described above. According to thefourth example embodiment, it is possible, for example, to suppressdegradation of quality for each of services that share a radio resource.

7. Other Example Embodiments

Descriptions have been given above of the example embodiments of thepresent invention. However, the present invention is not limited tothese example embodiments. It should be understood by those of ordinaryskill in the art that these example embodiments are merely examples andthat various alterations are possible without departing from the scopeand the spirit of the present invention.

For example, the steps in the processing described in the Specificationmay not necessarily be carried out in time series in the order describedin the corresponding sequence diagram. For example, the steps in theprocessing may be carried out in an order different from that describedin the corresponding sequence diagram or may be carried out in parallel.Some of the steps in the processing may be deleted, or more steps may beadded to the processing.

An apparatus including constituent elements (e.g., the informationobtaining unit and/or the quality evaluation unit) of the node apparatus(e.g., the base station, the first management apparatus, or the secondmanagement apparatus) described in the Specification (e.g., one or moreapparatuses (or units) among a plurality of apparatuses (or units)constituting the node apparatus or a module for one of the plurality ofapparatuses (or units)) may be provided. Moreover, methods includingprocessing of the constituent elements may be provided, and programs forcausing a processor to execute processing of the constituent elementsmay be provided. Moreover, non-transitory computer readable recordingmedia (non-transitory computer readable media) having recorded thereonthe programs may be provided. It is apparent that such apparatuses,modules, methods, programs, and non-transitory computer readablerecording media are also included in the present invention.

The whole or part of the example embodiments disclosed above can bedescribed as, but not limited to, the following supplementary notes.

(Supplementary Note 1)

A node apparatus comprising:

an information obtaining unit configured to obtain information relatedto change request for quality requirement of a first service managed bya first management apparatus involved in control for a radio resource ofa base station; and

a quality evaluation unit configured to evaluate a quality change causedin a second service managed by a second management apparatus, the secondservice sharing the radio resource with the first service, in responseto the change request for the quality requirement of the first service,to determine permission for the change request for the qualityrequirement of the first service.

(Supplementary Note 2)

The node apparatus according to Supplementary Note 1, wherein

the information obtaining unit is configured to further obtaininformation related to quality of the second service, and

the quality evaluation unit is configured to evaluate the quality changecaused in the second service in response to the change request for thequality requirement of the first service, based on the informationrelated to the quality of the second service, to determine permissionfor the change request for the quality requirement of the first service.

(Supplementary Note 3)

The node apparatus according to Supplementary Note 2, wherein

the information related to the quality of the second service includesinformation related to an estimate of the quality of the second servicein case that the quality requirement of the first service is changed,and

the quality evaluation unit is configured to evaluate the quality changecaused in the second service in response to the change request for thequality requirement of the first service, based on the estimate of thequality of the second service, to determine permission for the changerequest for the quality requirement of the first service.

(Supplementary Note 4)

The node apparatus according to Supplementary Note 3, wherein

the information related to the quality of the second service furtherincludes information related to quality requirement of the secondservice, and

the quality evaluation unit is configured to determine permission forthe change request for the quality requirement of the first service, incase that the estimate of the quality of the second service satisfiesthe quality requirement of the second service.

(Supplementary Note 5)

The node apparatus according to Supplementary Note 3 or 4, wherein theinformation obtaining unit is configured to include a quality estimationunit configured to estimate the estimate of the quality of the secondservice based on a use state of the radio resource.

(Supplementary Note 6)

The node apparatus according to Supplementary Note 5, further comprisinga communication processing unit configured to perform control for theradio resource of the base station in accordance with determination ofpermission of the change request for the quality requirement of thefirst service.

(Supplementary Note 7)

The node apparatus according to Supplementary Note 3 or 4, wherein theinformation obtaining unit is configured to obtain the informationrelated to an estimate of the quality of the second service by receivingthe information from the base station.

(Supplementary Note 8)

The node apparatus according to Supplementary Note 7, further comprisinga quality requirement change unit configured to perform the changerequest for the quality requirement of the first service.

(Supplementary Note 9)

The node apparatus according to any one of Supplementary Notes 1 to 8,wherein the first management apparatus is located at an edge of a mobilecommunication network.

(Supplementary Note 10)

The node apparatus according to any one of Supplementary Notes 1 to 9,wherein the second management apparatus is disposed in a cloud networkconnected via a mobile communication network.

(Supplementary Note 11)

A method comprising:

obtaining information related to change request for quality requirementof a first service managed by a first management apparatus involved incontrol for a radio resource of a base station; and

evaluating a quality change caused in a second service managed by asecond management apparatus, the second service sharing the radioresource with the first service, in response to the change request forthe quality requirement of the first service, to determine permissionfor the change request for the quality requirement of the first service.

(Supplementary Note 12)

A program that causes a processor to execute:

obtaining information related to change request for quality requirementof a first service managed by a first management apparatus involved incontrol for a radio resource of a base station; and

evaluating a quality change caused in a second service managed by asecond management apparatus, the second service sharing the radioresource with the first service, in response to the change request forthe quality requirement of the first service, to determine permissionfor the change request for the quality requirement of the first service.

(Supplementary Note 13)

A non-transitory computer-readable recording medium storing a programthat causes a processor to execute:

obtaining information related to change request for quality requirementof a first service managed by a first management apparatus involved incontrol for a radio resource of a base station; and

evaluating a quality change caused in a second service managed by asecond management apparatus, the second service sharing the radioresource with the first service, in response to the change request forthe quality requirement of the first service, to determine permissionfor the change request for the quality requirement of the first service.

INDUSTRIAL APPLICABILITY

In a mobile communication system, it is possible to suppress degradationof quality for each of services that share a radio resource.

REFERENCE SIGNS LIST

-   -   1 System    -   100 Base Station    -   200, 201, 202 Terminal Apparatus    -   300, 301, 302 Gateway    -   400 First Management Apparatus    -   500 Second Management Apparatus    -   141, 431, 531 Information Obtaining Unit    -   143, 433, 533 Quality Evaluation Unit    -   145, 437, 535 Communication Processing Unit    -   435 Quality Requirement Change Unit

What is claimed is:
 1. A node apparatus comprising: a memory storinginstructions; and one or more processors configured to execute theinstructions to: obtain information related to a change request for aQuality of Service (QoS) requirement of a first application service overan Internet Protocol (IP) layer managed by a first management apparatusinvolved in control for a radio resource of a base station; furtherobtain information related to a QoS of a second application service; andevaluate a QoS change caused in the second application service over anIP layer managed by a second management apparatus, the secondapplication service sharing the radio resource with the firstapplication service, in response to the change request for the QoSrequirement of the first application service, based on the informationrelated to the QoS of the second application service, to determinepermission for the change request for the QoS requirement of the firstapplication service, wherein the information related to the QoS of thesecond application service includes information related to an estimateobtained by reducing pre-change QoS of the second application service inresponse to increase of QoS of the first application service caused bythe QoS requirement; and the one or more processors are configured toexecute the instructions to evaluate the QoS change based on theestimate of the QoS of the second application service.
 2. The nodeapparatus according to claim 1, wherein the information related to theQoS of the second application service further includes informationrelated to a QoS requirement of the second application service, and theone or more processors are configured to execute the instructions todetermine the permission for the change request for the QoS requirementof the first application service, in case that the estimate of the QoSof the second application service satisfies the QoS requirement of thesecond application service.
 3. The node apparatus according to claim 1,wherein the one or more processors are configured to execute theinstructions to estimate the estimate of the QoS of the secondapplication service based on a use state of the radio resource.
 4. Thenode apparatus according to claim 3, wherein the one or more processorsare configured to execute the instructions to further perform controlfor the radio resource of the base station in accordance withdetermination of the permission of the change request for the QoSrequirement of the first application service.
 5. The node apparatusaccording to claim 1, wherein the one or more processors are configuredto execute the instructions to obtain the information related to theestimate of the QoS of the second application service by receiving theinformation from the base station.
 6. The node apparatus according toclaim 5, wherein the one or more processors are configured to executethe instructions to further perform the change request for the QoSrequirement of the first application service.
 7. The node apparatusaccording to claim 1, wherein the first management apparatus is locatedat an edge of a mobile communication network.
 8. The node apparatusaccording to claim 1, wherein the second management apparatus isdisposed in a cloud network connected via a mobile communicationnetwork.
 9. A method comprising: obtaining information related to achange request for a QoS requirement of a first application service overan Internet Protocol (IP) layer managed by a first management apparatusinvolved in control for a radio resource of a base station; obtaininginformation related to a QoS of a second application service; andevaluating a QoS change caused in the second application service over anIP layer managed by a second management apparatus, the secondapplication service sharing the radio resource with the firstapplication service, in response to the change request for the QoSrequirement of the first application service, based on the informationrelated to the QoS of the second application service, to determinepermission for the change request for the QoS requirement of the firstapplication service, wherein the information related to the QoS of thesecond application service includes information related to an estimateobtained by reducing pre-change QoS of the second application service inresponse to increase of QoS of the first application service caused bythe QoS requirement; and the evaluating includes evaluating the QoSchange based on the estimate of the QoS of the second applicationservice.
 10. A non-transitory computer-readable recording medium storinga program that causes a processor to execute: obtaining informationrelated to a change request for a QoS requirement of a first applicationservice over an Internet Protocol (IP) layer managed by a firstmanagement apparatus involved in control for a radio resource of a basestation; obtaining information related to a QoS of a second applicationservice; and evaluating a QoS change caused in the second applicationservice over an IP layer managed by a second management apparatus, thesecond application service sharing the radio resource with the firstapplication service, in response to the change request for the QoSrequirement of the first application service, based on the informationrelated to the QoS of the second application service, to determinepermission for the change request for the QoS requirement of the firstapplication service, wherein the information related to the QoS of thesecond application service includes information related to an estimateobtained by reducing pre-change QoS of the second application service inresponse to increase of QoS of the first application service caused bythe QoS requirement; and the evaluating includes evaluating the QoSchange based on the estimate of the QoS of the second applicationservice.